Dwyer L4 Level Switch, Flotect, Brass, Side Wall Mount

Downloads: datasheet manual

Operates automatically to indicate tank level. Perfect for starting or stopping pumps, opening or closing valves, or actuating level alarm signals.

Operates automatically to indicate tank level.
Perfect for starting or stopping pumps, opening or closing valves, or actuating level alarm signals.
A unique magnetically actuated switching design gives superior performance.
There are no bellows, springs, or seals to fail. Instead, the free-swinging float attracts a magnet within the solid metal switch body, actuating a snap switch by means of a simple lever arm.
Float arm hinge design limits the arm angle to prevent vertical hang up.

Specifications

Service: Liquids compatible with wetted materials.
Wetted Materials: Float and Rod: 316SS; Body: Brass or 316SS standard; Magnet Keeper: 430SS standard, 316SS or Nickel optional.
Temperature Limits: 4 to 275°F (-20 to 135°C) standard. MT high temperature option 400°F (205°C), (MT option not UL, CSA, ATEX or SAA).
Pressure Limit: Brass body 1000 psig (69 bar), 316SS body 2000 psig (138 bar). Standard float rated 100 psig (6.9 bar).
Enclosure Rating: Weatherproof and explosion-proof. Listed with UL and CSA for Class I, Groups C and D; Class II, Groups E, F, and G. ATEX CE 0344 EX II 2 G EEx d IIB T6 -20°C Tamb 75°C, EC-Type Certificate No: KEMA 03 ATEX 2383. SAA: Exd II C T6 (T amb=60°C). IP66 C1 I, Zone I. Also FM approved.
Switch Type: SPDT snap switch standard, DPDT snap switch optional.
Electrical Rating: UL, FM, ATEX and SAA models: 10A @ 125/250 VAC. CSA models: 5A @ 125/250 VAC; 5A res., 3A ind. @ 30 VDC. MV option: 1A @ 125
VAC; 1A res., .5A ind. @ 30 VDC. MT option: 5A @ 125/250 VAC. (MT and MV options not UL, CSA, FM, ATEX or SAA).
Electrical Connection: UL and CSA models: 16 AWG, 6" (152 mm) long. ATEX and SAA units: terminal block.
Process Connection: 1-1/2" male NPT standard, 2-1/2" male NPT required for optional floats.
Mounting Orientation: Horizontal installation standard, optional vertical top mount.
Weight: 4 lb 9 oz (2.07 kg).
Deadband: 3/4" (19 mm) for standard float.
Specific Gravity: 0.7 minimum with standard float.
Agency Approvals: UL, CSA, FM, CE and ATEX.

datasheet for the Dwyer L4 Level Switch, Flotect, Brass, Side Wall Mount manual for the Dwyer L4 Level Switch, Flotect, Brass, Side Wall Mount

Operates automatically to indicate tank level.
Perfect for starting or stopping pumps, opening or closing valves, or actuating level alarm signals.
A unique magnetically actuated switching design gives superior performance.
There are no bellows, springs, or seals to fail. Instead, the free-swinging float attracts a magnet within the solid metal switch body, actuating a snap switch by means of a simple lever arm.
Float arm hinge design limits the arm angle to prevent vertical hang up.

Specifications

Service: Liquids compatible with wetted materials.
Wetted Materials: Float and Rod: 316SS; Body: Brass or 316SS standard; Magnet Keeper: 430SS standard, 316SS or Nickel optional.
Temperature Limits: 4 to 275°F (-20 to 135°C) standard. MT high temperature option 400°F (205°C), (MT option not UL, CSA, ATEX or SAA).
Pressure Limit: Brass body 1000 psig (69 bar), 316SS body 2000 psig (138 bar). Standard float rated 100 psig (6.9 bar).
Enclosure Rating: Weatherproof and explosion-proof. Listed with UL and CSA for Class I, Groups C and D; Class II, Groups E, F, and G. ATEX CE 0344 EX II 2 G EEx d IIB T6 -20°C Tamb 75°C, EC-Type Certificate No: KEMA 03 ATEX 2383. SAA: Exd II C T6 (T amb=60°C). IP66 C1 I, Zone I. Also FM approved.
Switch Type: SPDT snap switch standard, DPDT snap switch optional.
Electrical Rating: UL, FM, ATEX and SAA models: 10A @ 125/250 VAC. CSA models: 5A @ 125/250 VAC; 5A res., 3A ind. @ 30 VDC. MV option: 1A @ 125
VAC; 1A res., .5A ind. @ 30 VDC. MT option: 5A @ 125/250 VAC. (MT and MV options not UL, CSA, FM, ATEX or SAA).
Electrical Connection: UL and CSA models: 16 AWG, 6" (152 mm) long. ATEX and SAA units: terminal block.
Process Connection: 1-1/2" male NPT standard, 2-1/2" male NPT required for optional floats.
Mounting Orientation: Horizontal installation standard, optional vertical top mount.
Weight: 4 lb 9 oz (2.07 kg).
Deadband: 3/4" (19 mm) for standard float.
Specific Gravity: 0.7 minimum with standard float.
Agency Approvals: UL, CSA, FM, CE and ATEX.